Actuator
The actuator's resin-metal combination for inner frame parts reduces costs and assembly challenges, ensuring stable vibration and easy assembly by separating press-fitted metal components from gel state members.
US12640612B2Active Publication Date: 2026-05-26NIDEC INSTR CORP
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Patent Information
- Authority / Receiving Office
- US · United States
- Patent Type
- Patents(United States)
- Current Assignee / Owner
- NIDEC INSTR CORP
- Filing Date
- 2024-04-02
- Publication Date
- 2026-05-26
AI Technical Summary
Technical Problem
Existing actuators face high component costs due to metal inner frame members and difficulty in assembly, with potential damage to gel state members during press-fitting.
Method used
The actuator design incorporates a resin-made inner frame part with a metal press-fitted member, separated from the connection body, reducing metal usage and facilitating assembly by allowing separate handling of parts.
Benefits of technology
This design lowers component costs, ensures secure fixed strength, and enhances assembly ease while maintaining vibration stability and reducing damage risks to gel state members.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure US12640612-D00000_ABST
Abstract
An actuator including a support having a tubular case and an outer frame inside the case, a movable body having a shaft at a center of the case and an inner frame holding the shaft from an outer peripheral side, a connection body connected with the outer frame and the inner frame and having at least one of elasticity and viscoelasticity, and a magnet and a coil structured to relatively move the movable body along the shaft with respect to the support. The inner frame includes a first member made of resin whose outer peripheral face is connected with the connection body and a second member made of metal which is fitted to an inner side of the first member, and the shaft is fixed to the first member through the second member by press-fitting the shaft to a center hole of the second member.
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